The Earth is Not Alone | Alien Planet
People began traveling in space in 1961 in tiny spacecraft called capsules, which were launched from Earth by powerful rockets. Russian crews still travel in this kind of craft, in Soyuz capsules, but Americans now travel into space in shuttles, which are rocket-powered space planes.
HOW DO HUMANS SURVIVE IN SPACE?
There is no oxygen in space, so all crewed spacecraft carry a life-support system. This supplies air for people to breathe. The system also includes equipment to keep the air at a comfortable temperature and pressure and to remove carbon dioxide and odors.
HOW DOES SPACE TRAVEL AFFECT PEOPLE?
Gravity in space is much weaker than it is on Earth. When people travel in space, they seem to become weightless. This often makes them feel sick. Their bodies do not have to work as hard, because they are not fighting gravity to sit or stand up. If they stay in space for a long time, the lack of gravity makes their muscles start to waste away. Exercise and a special diet help to combat these effects.
WHAT IS THE FARTHEST ANYONE HAS TRAVELED IN SPACE?
Astronauts on the APOLLO PROJECT traveled to the Moon, about 239,000 miles (385,000 km) away. Russian cosmonaut Valeri Poliakov traveled a distance of about 174 million miles (280 million km) around Earth while in the Mir space station.
In the space race of the 1960s, the US Apollo Project beat the Soviet Union by landing the first astronauts on the Moon. The first Moon landing, by Apollo 11, took place on July 20, 1969, when Neil Armstrong and Buzz Aldrin became the first humans to set foot on another world.
WHAT WAS THE APOLLO SPACECRAFT LIKE?
The Apollo spacecraft was launched from Earth by the Saturn V rocket. On the launch pad, the whole assembly stood 365 ft (111 m) tall. The spacecraft itself weighed 50 tons (45 metric tons). It was made from three main modules (sections). The command module for flight control housed the three-person crew. The service module carried equipment, fuel, and a rocket motor. The lunar module detached from the craft and landed two astronauts on the Moon’s surface.
HOW MANY APOLLO LANDINGS WERE THERE?
There were six Moon landings, beginning with Apollo 11 in July 1969 and ending with Apollo 17 in December 1972. During the missions, 12 astronauts explored the lunar surface for a total of over 80 hours and brought back nearly 880 lb (400 kg) of Moon rock and dust for examination on Earth.
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The Whole History of the Earth and Life 【Finished Edition】
Revised edition :
This is a documentary which portrays the birth of the solar system, the birth of the Earth, and the emergence and evolution of life on Earth depicted through latest research activities.
Executive producer: prof. Shigenori Maruyama. Supported by Hadean Bioscience Project.
1. The Origin of the Earth. 00:00
4.567 billion years ago : The formation of the Solar System.
4.56 billion years:ago : The formation of the Earth.
4.55 billion years ago : Giant impact.
2. Initiation of Plate Tectonics. 02:53
4.37-4.20 billion years ago : The formation of the atmosphere and ocean.
4.37-4.20 billion years ago : The initiation plate tectonics.
3. Birth of Proto-life. 06:57
4.10(4.20?) billion years ago : The birth of first proto-life.
4. The Initial Stage of Life. 10:53
4.37-4.20 billion years ago : The loss of the primordial continent and the generation of a strong geomagnetic field.
4.20 billion years ago : The emergence of sun-powered life.
4.10 billion tears ago : Mass extinction.
5. Second Stage of Evolution of Life. 16:36
2.90 billion years ago : The emergence of photosynthetic life.
2.70 billion years ago : Mantle overturn.
6. Third Stage of the Evolution of Life. 20:35
2.30 billion years ago : Mass extinction by snowball Earth.
2.10 billion years ago : From prokaryotes to eukaryotes.
7: The Dawn of the Cambrian Explosion. 25:07
1.90-0.80 billion tears ago : The Formation of a Supercontinent.
700-600 million years ago : The Sturtian Glaciation
700-600 million years ago : The Leaking Earth.
8: The Cambrian Explosion. 30:57
640 million years ago : The Origin of Multicellular Life. The Marinoan Glaciation.
580 million years ago : Appearance of Ediacaran Fauna. The Gaskiers Glaciation.
550 million years ago : Evolution Responds to Environmental Changes
540 million years ago : The First Cambrian Organisms
9: The Paleozoic Era. 37:06
600 million years ago : Expanding Habitats.
540 million years ago : The Co-evolution of Planets and Insects
550-540 million years ago : The Evolution of Vertebrates
260-250 million years ago : The Largest Mass extinction of the Phanerozoic Eon. Collision with a Dark nebula
10: From the Mesozoic to the birth of human beings. 43:23
Dispersion and amalgamation of continents, and the evolution of life.
The birth of primates.
11: The Humanozoic eon : the appearance of human beings and civilization. 50:26
Evolution into primates.
The birth of human beings, the fourth animal category : the Humanozoic eon.
10000 years ago : The Agricultural Revolution.
5000 years ago : The Urban Revolution.
2400 years ago : The Religious Revolution.
300 years ago : The Industrial Revolution.
The Information Revolution.
12: Future of the Earth. 57:54
Challenges for Human society.
Future of Human society.
Future of the Earth.
200 million years later : Formation of the supercontinent.
400 million years later : Extinction of the C4 plants.
1 billion years later : Cessation of plate tectonics.
1.5 billion years later : Disappearance of the ocean.
4.5 billion years later : Collision between the Milky Way Galaxy and the Andromeda Galaxy.
8 billion years later : Annihilation of the Earth.